TELEMATICS SYSTEM, Diagnostic DTC:B1573, B15CB

DTC Code DTC Name
B1573 Disconnect/Short in Telephone Antenna Circuit
B15CB Telephone Antenna Disconnected

DESCRIPTION

These DTCs are stored when a malfunction occurs in the telephone antenna.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1573 Disconnect/Short in Telephone Antenna Circuit

Telephone antenna assembly impedance (Ω) is lower than the malfunction threshold for 20 seconds when the engine switch is on (IG).

(Short circuit)

  • Telephone transceiver assembly

  • Antenna cord sub-assembly

  • Telephone antenna assembly
B15CB Telephone Antenna Disconnected

Telephone antenna assembly impedance (Ω) is higher than the malfunction threshold for 20 seconds when the engine switch is on (IG).

(Open circuit)

  • Telephone transceiver assembly

  • Antenna cord sub-assembly

  • Telephone antenna assembly

WIRING DIAGRAM

B000Z4HE04

CAUTION / NOTICE / HINT

Note


  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Registration for Telematics System.

    Click here

  • When replacing the telephone transceiver assembly, make sure to replace it with a new one.

PROCEDURE


  1. CHECK FOR DTC


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and wait for 20 seconds.

    4. Turn the GTS on.

    5. Check for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Telematics > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. INSPECT TELEPHONE ANTENNA ASSEMBLY


    1. B000VNIC01
      *a

      Component without harness connected

      (Telephone Antenna Assembly)

      Remove the telephone antenna assembly.

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 1a Always 9 to 11 kΩ
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE TELEPHONE ANTENNA ASSEMBLY Click here

    OK

  3. INSPECT ANTENNA CORD SUB-ASSEMBLY


    1. B000X7GC02
      *a

      Front view of wire harness connector

      (to Telephone Antenna Assembly)
      *b

      Front view of wire harness connector

      (to Telephone Transceiver Assembly)

      Disconnect the antenna cord sub-assembly from the telephone antenna assembly connector.

    2. Disconnect the antenna cord sub-assembly from the telephone transceiver assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 - B-1 (ANT1) Always Below 1 Ω
      A-1a - B-1a (ANT1G) Always Below 1 Ω
      A-1 or B-1 (ANT1) - Body ground Always 10 kΩ or higher
      A-1a or B-1a (ANT1G) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  4. CHECK TELEPHONE ANTENNA ASSEMBLY


    1. Replace the telephone antenna assembly with a known good one.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Telematics > Clear DTCs

    3. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Telematics > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (TELEPHONE ANTENNA ASSEMBLY IS DEFECTIVE)

    NG

  5. REPLACE TELEPHONE TRANSCEIVER ASSEMBLY


    1. Replace the telephone transceiver assembly with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM REGISTRATION Click here